UPDATE: Videographer named “Robert Bery” with footage for download at the NIST WTC Repository on archive.org. Probably network camera footage, since four clips from before the collapses were included as a CNN folder in the NIST FOIA release 14 like “Kiederling” who did work for CNN. The shot was only made with overloaded audio rumbling like a train on gravel. A TV airing of this clip has not been found. Thanks to 911Crasting for uploading dozens of clips from the NIST FOIA, including the one linked above (and below).
NIST 14: CNN Dub4 28 (partial)

YouTube 1


